Clinical efficacy of neoadjuvant chemotherapy combined with radical gastrectomy in elderly patients with advanced gastric cancer

Table 3 Comparison of Clavien-Dindo grading for postoperative complications in two groups of gastric cancer patients (cases)

Non hematological complications	Middle aged and young group (n = 111)	Elderly group (n = 37)	χ2 value	P value
Clavien-Dindo grading			2.926	0.232
Level 0	83	23	-	-
Level 1-2	21	12	-	-
Level 3-4	7	2	-	-
Postoperative complications
Pleural effusion	4	6	7.007	0.008
pulmonary infection	8	10	10.204	0.001
pneumothorax	1	1		0.439
Acute respiratory distress syndrome	3	0		0.573
Gastroparesis	2	-	-	1
Intestinal obstruction	3	0	-	0.573
Complications of anastomotic site	3	1	-	1.000
Abdominal bleeding	l	0	-	1.000
Wound infection	3	0	-	0.573
Cardiovascular and cerebrovascular related complications	4	3	-	0.264